Retention spring for brake pressure pads
View Patent ↗A brake caliper has a retention spring to eliminate excessive movement of the pressure plates or pad pin with respect to the caliper housing. The retention spring has a pad pin contacting portion to exert a force on the pad pin. The spring includes a retention portion continuous with the pad pin portion to provide counterforce to maintain the pad pin in position.
1. A spring clip for applying force on a brake pad pin and a pressure plate or an inboard or outboard pad pin support of a caliper housing, the spring clip comprising:
a spring having a pad pin contacting portion for contacting a brake pad pin and exerting a force on the brake pad pin at said pad pin contacting portion, said exerted force in a direction for holding the brake pad pin in position against the pressure plate or pad pin support; and
a retention portion continuous with said pad pin contacting portion, said retention portion providing a counterforce in a direction against the pressure plate or pad pin support for retaining said spring clip in position on the pressure plate or pad pin support,
wherein the spring clip includes a depth that is generally equal to a depth of the pressure plate or pad pin support and wherein the spring clip is engages a single brake pad pin.
2. The spring clip according to claim 1 wherein said retention portion surrounds the pad pin support.
3. The spring clip according to claim 2 wherein a second pad pin contacting portion contacts the pad pin.
4. The spring clip according to claim 3 wherein said spring clip has a closed rectangular configuration.
5. The spring clip according to claim 4 wherein said pad pin contacting portions surrounds a portion of the pad pin support.
6. The spring clip according to claim 5 wherein said spring clip is formed from a wire.
7. The spring clip according to claim 1 wherein said pad pin contacting portion has a shape complementary to the pad pin.
8. The spring clip according to claim 7 wherein said pad pin contacting portion has a concave surface for contacting the pad pin.
9. The spring clip according to claim 1 wherein said retention portion has an arcuate portion for contacting a periphery of an aperture in the pressure plate.
10. The spring clip according to claim 9 wherein said spring clip has two substantially identical retention portions.
11. The spring clip according to claim 1 wherein said spring clip has a two opposing C-shaped configuration having an open area on one of its sides.
12. The spring clip according to claim 11 wherein said open area opposes said pin pad contacting portion.
13. A brake caliper comprising:
a housing;
at least one pressure plate supported in said housing by a pad pin coupled with a pad pin support formed on an inboard or outboard side of said housing; and
a spring clip for applying force on said pad pin comprising:
a spring having a pad pin contacting portion for contacting a brake pad pin and exerting a force on the brake pad pin at said pad pin contacting portion, said exerted force in a direction for holding the pad pin in position against the pressure plate or pad pin support; and
a retention portion continuous with said pad pin contacting portion, said retention portion providing a counterforce in a direction against the pressure plate or pad pin support for retaining said spring clip in position on the pressure plate or pad pin support,
wherein the spring clip includes a depth that is generally equal to a depth of the pressure plate or pad pin support and wherein the spring clip engages a single brake pad pin.
14. A brake caliper according to claim 13 wherein said pad pin contacting portion has a shape complementary to the pad pin.
15. A brake caliper according to claim 14 wherein said spring clip has a two opposing C-shaped configuration having an open area on one of its sides.
16. A brake caliper according to claim 15 wherein a second pad pin contacting portion contacts the pad pin.
17. A brake caliper according to claim 16 wherein said spring clip has a closed rectangular configuration.
18. A brake caliper according to claim 17 wherein said pad pin contacting portions surrounds a portion of the pad pin support.
19. A brake caliper according to claim 18 wherein said spring clip is formed from a wire.
20. A brake caliper according to claim 15 wherein said open area opposes said pin pad contacting portion.
21. A brake caliper according to claim 14 wherein said retention portion surrounds the pad pin support.
22. A brake caliper according to claim 21 wherein a second spring applies force on pressure plates coupled with the pad pin.
23. A brake caliper according to claim 14 wherein said pad pin contacting portion has a concave surface for contacting the pad pin.
24. A brake caliper according to claim 13 wherein said retention portion has an arcuate portion for contacting a periphery of an aperture in the pressure plate.
25. A brake caliper according to claim 24 wherein said spring clip has two substantially identical retention portions.